Advertisement
Table 4 A summary of the estimation results for the parameters Θ
| Attributes | \(\overline {\Theta }_{MLE}\) | \(\Theta _{MLE}^{max}\) | \(\Theta _{MLE}^{min}\) | s.d. (ΘMLE) | nonsig. | positive | negative |
|---|---|---|---|---|---|---|---|
| Endogenous attributes: | |||||||
| Reciprocity | 1.59 | 3.78 | -2.62 | 1.31 | 15% | 80% | 5% |
| Popularity (k-in-stars) | 3.68 | 8.25 | 0.90 | 1.79 | 8% | 92% | 0% |
| Activity (k-out-stars) | -1.48 | -0.66 | -4.32 | 0.81 | 14% | 0% | 86% |
| k-two-paths | -0.01 | 0.41 | -1.00 | 0.15 | 60% | 28% | 12% |
| Cyclic closure (AT-C) | -0.06 | 0.56 | -2.14 | 0.26 | 59% | 10% | 31% |
| Path closure (AT-T) | 0.00 | 0.31 | -1.38 | 0.24 | 48% | 40% | 12% |
| Activity closure (AT-U) | -0.09 | 0.35 | -1.58 | 0.40 | 39% | 37% | 24% |
| Popularity closure (AT-D) | -0.28 | 0.31 | -3.38 | 0.51 | 50% | 6% | 44% |
| Exogenous attributes: | |||||||
| Sector homophily | 0.19 | 2.58 | -0.43 | 0.45 | 41% | 42% | 17% |
| Location homophily | 0.86 | 3.68 | 0.13 | 0.72 | 9% | 91% | 0% |
| Bank homophily | 0.44 | 0.14 | 3.12 | 0.002 | 15% | 80% | 5% |
| Size heterophily | 3.04·10−4 | 9.02·10−3 | -6.15. 10−03 | 1.12·10−03 | 48% | 33% | 19% |
| Sales heterophily | 3.59·10−8 | 5.31·10−7 | 4.31. 10−10 | 7.26·10−08 | 21% | 79% | 0% |
| Sales receiver effect | 5.80·10−8 | 1.22·10−6 | 4.73. 10−10 | 1.50·10−07 | 22% | 78% | 0% |
| Sales sender effect | − 1.31·10−8 | − 1.18·10−10 | -3.37. 10−07 | 3.71·10−08 | 52% | 0% | 48% |
